1CosEventChannelAdmin_ProxyPuElrllSaunpgplMioedruC(lo3es)EDveefnitnCihtainonnelAdmin_ProxyPullSupplier(3)
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NAME

6       CosEventChannelAdmin_ProxyPullSupplier - This module implements a Prox‐
7       yPullSupplier interface which acts as a middleman between pull consumer
8       and the event channel.
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DESCRIPTION

11       The  ProxyPullSupplier interface defines the second step for connecting
12       pull consumers to the event channel. A proxy supplier is similar  to  a
13       normal  supplier,  but  includes  an additional method for connecting a
14       consumer to the proxy supplier.
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16       To get access to all definitions, e.g., exceptions,  include  necessary
17       hrl files by using:
18       -include_lib("cosEvent/include/*.hrl").
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20       Any  object that possesses an object reference that supports the Proxy‐
21       PullSupplier interface can perform the following operations:
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EXPORTS

24       connect_pull_consumer(Object, PullConsumer) -> Return
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26              Types:
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28                 Object = #objref
29                 PullConsumer = #objref of PullConsumer type
30                 Return = ok |  {'EXCEPTION',  #'CosEventChannelAdmin_Already‐
31                 Connected'{}}
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33              This operation connects PullConsumer object to the ProxyPullSup‐
34              plier object. A nil object reference can be passed to this oper‐
35              ation.  If  so  a channel cannot invoke the disconnect_pull_con‐
36              sumer operation on the consumer; the  consumer  may  be  discon‐
37              nected  from  the  channel without being informed. If the Proxy‐
38              PullSupplier is already connected to a  PullConsumer,  then  the
39              CosEventChannelAdmin_AlreadyConnected exception is raised.
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41       disconnect_pull_supplier(Object) -> Return
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43              Types:
44
45                 Object = #objref
46                 Return = ok
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48              This  operation  disconnects  proxy pull supplier from the event
49              channel. It sends a notification about the loss of  the  connec‐
50              tion to the pull consumer attached to it, unless nil object ref‐
51              erence was passed at the connection time.
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53       pull(Object) -> Return
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55              Types:
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57                 Object = #objref
58                 Return = any
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60              This operation blocks until the event data is available  or  the
61              CosEventComm_Disconnected  exception  is  raised. It returns the
62              event data to the consumer.
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64       try_pull(Object) -> Return
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66              Types:
67
68                 Object = #objref
69                 Return = {any, bool()}
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71              This operation does not block: if the event data  is  available,
72              it returns the event data and sets the data availability flag to
73              true; otherwise it returns a long with an  undefined  value  and
74              sets  the data availability to false. If the event communication
75              has already been disconnected, the CosEventComm_Disconnected ex‐
76              ception is raised.
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80Ericsson AB                     cosEveCnotsE5v.e0n.t2ChannelAdmin_ProxyPullSupplier(3)
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